Search found 2788 matches

by haklesup
Tue Dec 03, 2019 1:20 pm
Forum: General Discussion
Topic: Cheap china led strobe lights. - need advice.
Replies: 7
Views: 215

Re: Cheap china led strobe lights. - need advice.

"No such thing as quality from China...." Even the Chinese avoid made in China for many products. The reality is that ebay and amazon have become a dumping ground for knockoffs and end of run rejects. Amazon has cleaned up a bit but ebay is still no better than Alibaba. In any case, LED for Automoti...
by haklesup
Mon Dec 02, 2019 4:11 pm
Forum: General Discussion
Topic: SPAM Attack
Replies: 7
Views: 135

Re: SPAM Attack

Saw that, what a mess, they must have tried to run a script, must have been a whole page and a half of new spam topics
by haklesup
Mon Dec 02, 2019 4:09 pm
Forum: General Discussion
Topic: Cheap china led strobe lights. - need advice.
Replies: 7
Views: 215

Re: Cheap china led strobe lights. - need advice.

My biggest beef with Chinese LED assemblies is they often don't bother to couple the led to the already included heat sinks. One set of tail light replacements just had the COB slotted in the aluminum heat sink but the air gap behind it made it as if there were none and they burned out quickly. Some...
by haklesup
Tue Nov 26, 2019 11:13 am
Forum: General Discussion
Topic: Transistor Nixie Clock
Replies: 4
Views: 127

Re: Transistor Nixie Clock

OTOH, we can try to debug the circuit here but need more details of the kit. Maybe another logic family for the flip flops and some tweaks to the voltage thresholds will result in less disturbance. Just drop the kit and put the tubes and sockets on ebay as is without explanation, someone might find ...
by haklesup
Mon Nov 25, 2019 1:48 pm
Forum: General Discussion
Topic: How Do you Clean A Deep Fryer?
Replies: 7
Views: 308

Re: How Do you Clean A Deep Fryer?

With a consumer grade replacement cost in the $50 to $80 range, they didn't build in features to make cleaning them really good very easy. No matter what you use, its going to need some elbow grease; the universal solvent. I wonder if a slurry of baking soda and/or baking powder with soap might work...
by haklesup
Mon Nov 25, 2019 1:39 pm
Forum: General Discussion
Topic: Transistor Nixie Clock
Replies: 4
Views: 127

Re: Transistor Nixie Clock

What an Irresistible sales pitch, I have to pass though.
by haklesup
Thu Nov 21, 2019 1:19 pm
Forum: General Discussion
Topic: Help to find a schematic - Coleman PMP3000
Replies: 4
Views: 412

Re: Help to find a schematic - Coleman PMP3000

horrible reviews on Amazon for this model. One person says 100% guaranteed failure, another says 3.5A no load current on the 12V, another says it kills batteries too fast, not good for small loads. I expect you will find a Made in China somewhere on there. Did you manage to fix it? The ebay schemati...
by haklesup
Tue Oct 22, 2019 1:06 pm
Forum: General Discussion
Topic: Interesting assembly method...
Replies: 5
Views: 286

Re: Interesting assembly method...

Its lawful for you to fix electronics but perhaps not to import Apple compatible Digitizers and try to repair Apple phones yourself. Apple will serve you with a cease and desist letter for not being authorized and not using their branded parts and your screens may be confiscated by customs as counte...
by haklesup
Mon Oct 21, 2019 3:15 pm
Forum: General Discussion
Topic: Energy problem solved!
Replies: 10
Views: 2439

Re: Energy problem solved!

If you are referring to the skin effect, I think that is negligible at 60/120 hz.
by haklesup
Mon Oct 21, 2019 3:10 pm
Forum: General Discussion
Topic: Interesting assembly method...
Replies: 5
Views: 286

Re: Interesting assembly method...

"There is probably a way to reset the Phone, and wipe the password using a certain keypad configuration that you punch in." Possibly so but without "right to repair" laws, they rarely tell us. https://www.vice.com/en_us/article/43k55w/the-most-important-right-to-repair-hearing-yet-is-on-monday I thi...
by haklesup
Fri Oct 11, 2019 4:10 pm
Forum: General Discussion
Topic: Any knife makers out there?
Replies: 2
Views: 249

Re: Any knife makers out there?

you want a Tool and Die making Machine shop, A map search shows a few in MD. Sounds like a machine shop job but one that can cut tool steel. its going to cost several hundred, maybe less if you have an existing die they can modify with a custom sharpening. Check with these guys, maybe something cros...
by haklesup
Fri Oct 11, 2019 3:55 pm
Forum: General Discussion
Topic: Crappy Headphone wires.......
Replies: 1
Views: 125

Re: Crappy Headphone wires.......

Cheap assembly of audio cables or just cheap wire I have seen many many times. Unless these headphones are special to you, I suggest you change to something wireless this Christmas. As for replacement, look for 3 conductor, 28 gauge with shield though the original may have been thinner, you can upgr...
by haklesup
Fri Oct 04, 2019 3:13 pm
Forum: General Discussion
Topic: laser level offset measurement
Replies: 3
Views: 234

Re: laser level offset measurement

Have you picked a photo diode (PIR), can you post the part number. I am interested in output characteristics and the package it is in. you probably want to be picky about the lens and the direction the light needs to come in. Many have omnidirectional bubble like plastic lens and others are flat. Go...
by haklesup
Thu Oct 03, 2019 5:21 pm
Forum: General Discussion
Topic: laser level offset measurement
Replies: 3
Views: 234

Re: laser level offset measurement

Sounds a bit like a total station. so when the Photodiode is illuminated by the red laser (you may need a red filter to reduce ambient glare) the diode generates some current. If you connect that to a digital IC (probably with parallel resistor to ground) with the right VIL and VIH levels, you may b...
by haklesup
Wed Sep 25, 2019 3:38 pm
Forum: General Discussion
Topic: Self entertaining, entertainment system!
Replies: 29
Views: 3301

Re: Self entertaining, entertainment system!

with data turned off, it disables WiFi but not necessarily Cellular pings, you would need to go to airplane mode for that.